Consolidated Balance Sheets (Unaudited) - PAC (Parenthetical) - $ / shares shares in Millions	Sep. 30, 2022	Dec. 31, 2021
Common stock, shares authorized	115	115
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, shares issued	76	76
Common stock, shares outstanding	76	76
PAC
Common stock, shares authorized	750	750
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, shares issued	357	357
Common stock, shares outstanding	357	357

Face amount per share of no-par value common stock.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 505
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